From: Gabe Black <gblack@eecs.umich.edu>
Date: Wed, 2 Jun 2010 17:58:18 +0000 (-0500)
Subject: ARM: Add a comment to vfp.cc that explains the asm statements.
X-Git-Tag: stable_2012_02_02~1059
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=e50e6a260f5316871ad53ae44d1b10ceb2ca267f;p=gem5.git

ARM: Add a comment to vfp.cc that explains the asm statements.
---

diff --git a/src/arch/arm/insts/vfp.cc b/src/arch/arm/insts/vfp.cc
index 163779715..1968a59a9 100644
--- a/src/arch/arm/insts/vfp.cc
+++ b/src/arch/arm/insts/vfp.cc
@@ -39,6 +39,12 @@
 
 #include "arch/arm/insts/vfp.hh"
 
+/*
+ * The asm statements below are to keep gcc from reordering code. Otherwise
+ * the rounding mode might be set after the operation it was intended for, the
+ * exception bits read before it, etc.
+ */
+
 std::string
 FpRegRegOp::generateDisassembly(Addr pc, const SymbolTable *symtab) const
 {